Procaliber 8

/

£1,500.00
Model 21841

The Procaliber 8 delivers all the trims of a race-ready XC mountain bike – RockShox fork, Shimano XT/SLX drivetrain – on a lightweight, durable Alpha Platinum Aluminium frame with an IsoSpeed decoupler that smooths out rough trail. This is a high-quality hardtail with the key performance upgrades chosen to help you towards your fastest, longest rides ever.

The Procaliber 8 delivers all the trims of a race-ready XC mountain bike – RockShox fork, Shimano XT/SLX drivetrain – on a lightweight, durable Alpha Platinum Aluminium frame with an IsoSpeed decoupler that smooths out rough trail. This is a high-quality hardtail with the key performance upgrades chosen to help you towards your fastest, longest rides ever.

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It's right for you if...

You like the responsiveness of an aluminium frame, and would rather spend your money on better components than a full carbon frame. You want a ride that's lightweight and responsive, with an IsoSpeed decoupler and carbon seatpost, so you can pedal over rough spots with comfort and ease.

The final word

This is hands down the best aluminium hardtail we make. You're getting Trek's highest-grade Alpha Platinum Aluminium frame, the unique advantage of trail-smoothing IsoSpeed, a full-on race-worthy spec, a carbon crank and the kind of quality suspension that can hold its own on the World Cup XC circuit.

favorite_borderWhy you'll love it

The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beaten up by trail chatter

You're putting your money into the parts that make a big difference in performance: an advanced frame, carbon crank and quality RockShox suspension

The carbon crank saves a lot of weight, and it's super responsive when you're putting the hammer down on a climb

Alpha Platinum Aluminium

Remote lockout

Handlebar-mounted controls let you lock out your suspension on the fly as you switch terrains.

Extended size range

A wider range of sizes than the industry standard provides more options for everyone, from tallest to shortest and all those in between. Because everyone deserves a great ride.

Boost148/110

Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 at the back lets you run wider tyres and a larger chain ring without affecting q-factor and pedalling efficiency.

Weight

This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.

Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

Rider Height

13.5

148.0 - 154.0 cm

4'10.3" - 5'0.6"

15.5

153.0 - 161.0 cm

5'0.2" - 5'3.4"

17.5

164.0 - 177.0 cm

5'4.6" - 5'9.7"

18.5

170.0 - 178.0 cm

5'6.9" - 5'10.1"

19.5

174.0 - 187.0 cm

5'8.5" - 6'1.6"

21.5

186.0 - 195.0 cm

6'1.2" - 6'4.8"

23

197.0 - 202.0 cm

6'5.6" - 6'7.5"

All measurements provided in cm unless otherwise stated.

Frame size number

Wheel size

A
Seat tube

B
Seat tube angle

Effective seat tube angle

C
Head tube length

D
Head angle

E
Effective top tube

F
Bottom bracket height

G
Bottom bracket drop

H
Chainstay length

I
Offset

J
Trail

K
Wheelbase

L
Standover

M
Frame reach

N
Frame stack

Frame rise

15.5 in

27.5"

36.8

73.0°

73.0°

10.0

69.3°

56.4

30.2

4.8

42.5

4.4

8.5

105.3

71.0

38.2

58.3

56.3

17.5 in

29"

41.9

72.5°

72.5°

9.0

69.5°

59.9

31.1

5.8

43.5

5.1

8.3

109.8

74.6

41.2

59.5

59.5

18.5 in

29"

44.4

72.3°

72.3°

9.0

69.5°

61.7

31.1

5.8

43.5

5.1

8.3

111.3

75.9

42.7

59.5

59.5

19.5 in

29"

47.0

72.0°

72.0°

10.0

69.5°

63.8

31.1

5.8

43.5

5.1

8.3

113.2

77.7

44.2

60.4

60.4

23 in

29"

55.9

72.0°

72.0°

12.0

69.6°

67.3

31.1

5.8

43.5

5.1

8.3

116.6

83.8

47.1

63..2

63..2

21.5 in

29"

52.1

72.0°

72.0°

12.0

69.5°

65.9

31.1

5.8

43.5

5.1

8.3

115.4

81.2

45.7

62.8

62.8

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